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The JH13 Pro was my first purchase of high-end personal audio equipment so it's difficult for me to provide a fair comparison (prior to purchasing them, I was listening to iPhone earbuds), but I can safely say that I couldn't possibly be happier with my purchase.
The process of getting the impressions made was painless (albeit a bit expensive in the San Francisco Bay Area), and...” --WKHarmon

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I orederd a pair of JH 16Pro IEMs in May. It is now June 15th. Since ordering the first pair, I have returned at my cost of $21.15 each time, the IEMs three times. Each time, Caleb Ellis, who manages the department that makes the IEMs, said he could not explain what had happened.
The left IEM of the first pair fitted perfectly with the impressions I paid an ...” --rollinoswald

“Here's my video review of the universal Roxanne, kindly loaned to me by Jerry Harvey.
Notes: The tips I was using were given to me and are called SpinFit. I don't know of anyone selling them at present, but Jerry Harvey has said he is going to look into making them available.
” --Currawong

“Introduction
I decided to buy the CIEM JH5 when I talked to my friend who has the CIEM JH5, JH13 and JH10x3 and he told me that he most CIEM hear is JH5 because it does not show either the "defects" of the music of poor quality or unrecorded and hence to casually listen for hours. How would I already spend good money and did not want to disappoint me made ​​the choice so that my...” --Vitor Valeri

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I feel obligated to share out-of-the-gate that I am no CIEM expert! As a matter of fact, I don't even particularly enjoy IEMs - I love over-ear or on-ear headphones. That said: Experiencing JH Audio's JH-13 Pro (now Freqphase) IEMs at Canjam 2009 was nothing short of a revelation for me. As a matter of fact, the experience was so far from anything I had to compare it with that I ended...” --mikemercer

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I bought these to upgrade from my UE triple fi 10 pro's. I LOVED the Triple fi's, but wanted to go to customs for greater bass response and isolation on stage. (i'm a bass player). The first thing I have to say is that I was kind of torn between UE and JH Audio, but after dealing with both companies now I have to say that if the products are equal in quality, and I think...” --loverbuggy